The _____ is the client's permanent progress record of services received and contains the results, formulations, products used during services, as well as any sensitivities or allergies.

• A. History Ledger
• B. Client File
• C. Service Record Card
• D. Treatment Log

Answer: (C)

Documenting a client's service history in a single, permanent record is essential for safety and consistent results. The Service Record Card is designed to capture, across visits, every service performed, the formulations and products used, the results achieved, and any sensitivities or allergies the client may have. This focused record helps practitioners tailor future services, avoid adverse reactions, and track progress over time.

Other terms don’t fit as precisely. A History Ledger isn’t a standard salon term for this purpose, a Client File tends to be a broader collection of information (demographics, medical history, preferences) rather than the ongoing, service-by-service progress log, and a Treatment Log is typically used for daily notes rather than a formal, permanent record of all services and products used.